git.sesse.net Git - ffmpeg/blob - configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avcore         disable libavcore build
  90   --disable-avformat       disable libavformat build
  91   --disable-swscale        disable libswscale build
  92   --enable-postproc        enable GPLed postprocessing support [no]
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101   --disable-fastdiv        disable table-based division
 102   --enable-small           optimize for size instead of speed
 103   --disable-aandct         disable AAN DCT code
 104   --disable-dct            disable DCT code
 105   --disable-fft            disable FFT code
 106   --disable-golomb         disable Golomb code
 107   --disable-huffman        disable Huffman code
 108   --disable-lpc            disable LPC code
 109   --disable-mdct           disable MDCT code
 110   --disable-rdft           disable RDFT code
 111   --disable-vaapi          disable VAAPI code
 112   --disable-vdpau          disable VDPAU code
 113   --disable-dxva2          disable DXVA2 code
 114   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 115   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 116   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 117   --disable-everything     disable all components listed below
 118   --disable-encoder=NAME   disable encoder NAME
 119   --enable-encoder=NAME    enable encoder NAME
 120   --disable-encoders       disable all encoders
 121   --disable-decoder=NAME   disable decoder NAME
 122   --enable-decoder=NAME    enable decoder NAME
 123   --disable-decoders       disable all decoders
 124   --disable-hwaccel=NAME   disable hwaccel NAME
 125   --enable-hwaccel=NAME    enable hwaccel NAME
 126   --disable-hwaccels       disable all hwaccels
 127   --disable-muxer=NAME     disable muxer NAME
 128   --enable-muxer=NAME      enable muxer NAME
 129   --disable-muxers         disable all muxers
 130   --disable-demuxer=NAME   disable demuxer NAME
 131   --enable-demuxer=NAME    enable demuxer NAME
 132   --disable-demuxers       disable all demuxers
 133   --enable-parser=NAME     enable parser NAME
 134   --disable-parser=NAME    disable parser NAME
 135   --disable-parsers        disable all parsers
 136   --enable-bsf=NAME        enable bitstream filter NAME
 137   --disable-bsf=NAME       disable bitstream filter NAME
 138   --disable-bsfs           disable all bitstream filters
 139   --enable-protocol=NAME   enable protocol NAME
 140   --disable-protocol=NAME  disable protocol NAME
 141   --disable-protocols      disable all protocols
 142   --disable-indev=NAME     disable input device NAME
 143   --disable-outdev=NAME    disable output device NAME
 144   --disable-indevs         disable input devices
 145   --disable-outdevs        disable output devices
 146   --disable-devices        disable all devices
 147   --enable-filter=NAME     enable filter NAME
 148   --disable-filter=NAME    disable filter NAME
 149   --disable-filters        disable all filters
 150   --list-decoders          show all available decoders
 151   --list-encoders          show all available encoders
 152   --list-hwaccels          show all available hardware accelerators
 153   --list-muxers            show all available muxers
 154   --list-demuxers          show all available demuxers
 155   --list-parsers           show all available parsers
 156   --list-protocols         show all available protocols
 157   --list-bsfs              show all available bitstream filters
 158   --list-indevs            show all available input devices
 159   --list-outdevs           show all available output devices
 160   --list-filters           show all available filters
 161
 162 External library support:
 163   --enable-avisynth        enable reading of AVISynth script files [no]
 164   --enable-bzlib           enable bzlib [autodetect]
 165   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 166   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 167   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 168                            and libraw1394 [no]
 169   --enable-libdirac        enable Dirac support via libdirac [no]
 170   --enable-libfaac         enable FAAC support via libfaac [no]
 171   --enable-libgsm          enable GSM support via libgsm [no]
 172   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 173   --enable-libnut          enable NUT (de)muxing via libnut,
 174                            native (de)muxer exists [no]
 175   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 176   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 177   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 178   --enable-libspeex        enable Speex decoding via libspeex [no]
 179   --enable-libtheora       enable Theora encoding via libtheora [no]
 180   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 181                            native implementation exists [no]
 182   --enable-libvpx          enable VP8 support via libvpx [no]
 183   --enable-libx264         enable H.264 encoding via x264 [no]
 184   --enable-libxavs         enable AVS encoding via xavs [no]
 185   --enable-libxvid         enable Xvid encoding via xvidcore,
 186                            native MPEG-4/Xvid encoder exists [no]
 187   --enable-mlib            enable Sun medialib [no]
 188   --enable-zlib            enable zlib [autodetect]
 189
 190 Advanced options (experts only):
 191   --source-path=PATH       path to source code [$source_path]
 192   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 193   --enable-cross-compile   assume a cross-compiler is used
 194   --sysroot=PATH           root of cross-build tree
 195   --sysinclude=PATH        location of cross-build system headers
 196   --target-os=OS           compiler targets OS [$target_os]
 197   --target-exec=CMD        command to run executables on target
 198   --target-path=DIR        path to view of build directory on target
 199   --nm=NM                  use nm tool
 200   --ar=AR                  use archive tool AR [$ar_default]
 201   --as=AS                  use assembler AS [$as_default]
 202   --cc=CC                  use C compiler CC [$cc_default]
 203   --ld=LD                  use linker LD
 204   --host-cc=HOSTCC         use host C compiler HOSTCC
 205   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 206   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 207   --host-libs=HLIBS        use libs HLIBS when linking for host
 208   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 209   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 210   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 211   --extra-version=STRING   version string suffix []
 212   --build-suffix=SUFFIX    library name suffix []
 213   --arch=ARCH              select architecture [$arch]
 214   --cpu=CPU                select the minimum required CPU (affects
 215                            instruction selection, may crash on older CPUs)
 216   --disable-asm            disable all assembler optimizations
 217   --disable-altivec        disable AltiVec optimizations
 218   --disable-amd3dnow       disable 3DNow! optimizations
 219   --disable-amd3dnowext    disable 3DNow! extended optimizations
 220   --disable-mmx            disable MMX optimizations
 221   --disable-mmx2           disable MMX2 optimizations
 222   --disable-sse            disable SSE optimizations
 223   --disable-ssse3          disable SSSE3 optimizations
 224   --disable-armv5te        disable armv5te optimizations
 225   --disable-armv6          disable armv6 optimizations
 226   --disable-armv6t2        disable armv6t2 optimizations
 227   --disable-armvfp         disable ARM VFP optimizations
 228   --disable-iwmmxt         disable iwmmxt optimizations
 229   --disable-mmi            disable MMI optimizations
 230   --disable-neon           disable neon optimizations
 231   --disable-vis            disable VIS optimizations
 232   --disable-yasm           disable use of yasm assembler
 233   --enable-pic             build position-independent code
 234   --malloc-prefix=PFX      prefix malloc and related names with PFX
 235   --enable-sram            allow use of on-chip SRAM
 236
 237 Developer options (useful when working on FFmpeg itself):
 238   --disable-debug          disable debugging symbols
 239   --enable-debug=LEVEL     set the debug level [$debuglevel]
 240   --disable-optimizations  disable compiler optimizations
 241   --enable-extra-warnings  enable more compiler warnings
 242   --disable-stripping      disable stripping of executables and shared libraries
 243   --samples=PATH           location of test samples for FATE
 244
 245 NOTE: Object files are built at the place where configure is launched.
 246 EOF
 247   exit 0
 248 }
 249
 250 quotes='""'
 251
 252 log(){
 253     echo "$@" >> $logfile
 254 }
 255
 256 log_file(){
 257     log BEGIN $1
 258     pr -n -t $1 >> $logfile
 259     log END $1
 260 }
 261
 262 echolog(){
 263     log "$@"
 264     echo "$@"
 265 }
 266
 267 warn(){
 268     log "WARNING: $*"
 269     WARNINGS="${WARNINGS}WARNING: $*\n"
 270 }
 271
 272 die(){
 273     echolog "$@"
 274     cat <<EOF
 275
 276 If you think configure made a mistake, make sure you are using the latest
 277 version from SVN.  If the latest version fails, report the problem to the
 278 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 279 EOF
 280     if disabled logging; then
 281         cat <<EOF
 282 Rerun configure with logging enabled (do not use --disable-logging), and
 283 include the log this produces with your report.
 284 EOF
 285     else
 286 cat <<EOF
 287 Include the log file "$logfile" produced by configure as this will help
 288 solving the problem.
 289 EOF
 290     fi
 291     exit 1
 292 }
 293
 294 # Avoid locale weirdness, besides we really just want to translate ASCII.
 295 toupper(){
 296     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 297 }
 298
 299 tolower(){
 300     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 301 }
 302
 303 c_escape(){
 304     echo "$*" | sed 's/["\\]/\\\0/g'
 305 }
 306
 307 sh_quote(){
 308     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 309     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 310     echo "$v"
 311 }
 312
 313 filter(){
 314     pat=$1
 315     shift
 316     for v; do
 317         eval "case $v in $pat) echo $v ;; esac"
 318     done
 319 }
 320
 321 map(){
 322     m=$1
 323     shift
 324     for v; do eval $m; done
 325 }
 326
 327 set_all(){
 328     value=$1
 329     shift
 330     for var in $*; do
 331         eval $var=$value
 332     done
 333 }
 334
 335 set_weak(){
 336     value=$1
 337     shift
 338     for var; do
 339         eval : \${$var:=$value}
 340     done
 341 }
 342
 343 pushvar(){
 344     for var in $*; do
 345         eval level=\${${var}_level:=0}
 346         eval ${var}_${level}="\$$var"
 347         eval ${var}_level=$(($level+1))
 348     done
 349 }
 350
 351 popvar(){
 352     for var in $*; do
 353         eval level=\${${var}_level:-0}
 354         test $level = 0 && continue
 355         eval level=$(($level-1))
 356         eval $var="\${${var}_${level}}"
 357         eval ${var}_level=$level
 358         eval unset ${var}_${level}
 359     done
 360 }
 361
 362 enable(){
 363     set_all yes $*
 364 }
 365
 366 disable(){
 367     set_all no $*
 368 }
 369
 370 enable_weak(){
 371     set_weak yes $*
 372 }
 373
 374 disable_weak(){
 375     set_weak no $*
 376 }
 377
 378 enable_safe(){
 379     for var; do
 380         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 381     done
 382 }
 383
 384 disable_safe(){
 385     for var; do
 386         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 387     done
 388 }
 389
 390 do_enable_deep(){
 391     for var; do
 392         enabled $var && continue
 393         eval sel="\$${var}_select"
 394         eval sgs="\$${var}_suggest"
 395         pushvar var sgs
 396         enable_deep $sel
 397         popvar sgs
 398         enable_deep_weak $sgs
 399         popvar var
 400     done
 401 }
 402
 403 enable_deep(){
 404     do_enable_deep $*
 405     enable $*
 406 }
 407
 408 enable_deep_weak(){
 409     do_enable_deep $*
 410     enable_weak $*
 411 }
 412
 413 enabled(){
 414     test "${1#!}" = "$1" && op== || op=!=
 415     eval test "x\$${1#!}" $op "xyes"
 416 }
 417
 418 disabled(){
 419     test "${1#!}" = "$1" && op== || op=!=
 420     eval test "x\$${1#!}" $op "xno"
 421 }
 422
 423 enabled_all(){
 424     for opt; do
 425         enabled $opt || return 1
 426     done
 427 }
 428
 429 disabled_all(){
 430     for opt; do
 431         disabled $opt || return 1
 432     done
 433 }
 434
 435 enabled_any(){
 436     for opt; do
 437         enabled $opt && return 0
 438     done
 439 }
 440
 441 disabled_any(){
 442     for opt; do
 443         disabled $opt && return 0
 444     done
 445     return 1
 446 }
 447
 448 set_default(){
 449     for opt; do
 450         eval : \${$opt:=\$${opt}_default}
 451     done
 452 }
 453
 454 is_in(){
 455     value=$1
 456     shift
 457     for var in $*; do
 458         [ $var = $value ] && return 0
 459     done
 460     return 1
 461 }
 462
 463 check_deps(){
 464     for cfg; do
 465         cfg="${cfg#!}"
 466         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 467         disabled ${cfg}_checking && continue
 468         enable ${cfg}_checking
 469
 470         eval dep_all="\$${cfg}_deps"
 471         eval dep_any="\$${cfg}_deps_any"
 472         eval dep_sel="\$${cfg}_select"
 473         eval dep_sgs="\$${cfg}_suggest"
 474         eval dep_ifa="\$${cfg}_if"
 475         eval dep_ifn="\$${cfg}_if_any"
 476
 477         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 478         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 479         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 480
 481         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 482         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 483         enabled_all  $dep_all || disable $cfg
 484         enabled_any  $dep_any || disable $cfg
 485         disabled_any $dep_sel && disable $cfg
 486
 487         if enabled $cfg; then
 488             eval dep_extralibs="\$${cfg}_extralibs"
 489             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 490             enable_deep $dep_sel
 491             enable_deep_weak $dep_sgs
 492         fi
 493
 494         disable ${cfg}_checking
 495     done
 496 }
 497
 498 print_config(){
 499     pfx=$1
 500     header=$2
 501     makefile=$3
 502     shift 3
 503     for cfg; do
 504         ucname="$(toupper $cfg)"
 505         if enabled $cfg; then
 506             echo "#define ${pfx}${ucname} 1" >> $header
 507             echo "${pfx}${ucname}=yes" >> $makefile
 508         else
 509             echo "#define ${pfx}${ucname} 0" >> $header
 510             echo "!${pfx}${ucname}=yes" >> $makefile
 511         fi
 512     done
 513 }
 514
 515 print_enabled(){
 516     test "$1" = -n && end=" " && shift || end="\n"
 517     suf=$1
 518     shift
 519     for v; do
 520         enabled $v && printf "%s$end" ${v%$suf};
 521     done
 522 }
 523
 524 append(){
 525     var=$1
 526     shift
 527     eval "$var=\"\$$var $*\""
 528 }
 529
 530 prepend(){
 531     var=$1
 532     shift
 533     eval "$var=\"$* \$$var\""
 534 }
 535
 536 add_cppflags(){
 537     append CPPFLAGS $($filter_cppflags "$@")
 538 }
 539
 540 add_cflags(){
 541     append CFLAGS $($filter_cflags "$@")
 542 }
 543
 544 add_asflags(){
 545     append ASFLAGS $($filter_asflags "$@")
 546 }
 547
 548 add_ldflags(){
 549     append LDFLAGS "$@"
 550 }
 551
 552 add_extralibs(){
 553     prepend extralibs "$@"
 554 }
 555
 556 check_cmd(){
 557     log "$@"
 558     "$@" >> $logfile 2>&1
 559 }
 560
 561 check_cc(){
 562     log check_cc "$@"
 563     cat > $TMPC
 564     log_file $TMPC
 565     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 566 }
 567
 568 check_cpp(){
 569     log check_cpp "$@"
 570     cat > $TMPC
 571     log_file $TMPC
 572     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 573 }
 574
 575 check_as(){
 576     log check_as "$@"
 577     cat > $TMPC
 578     log_file $TMPC
 579     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 580 }
 581
 582 check_asm(){
 583     log check_asm "$@"
 584     name="$1"
 585     code="$2"
 586     shift 2
 587     disable $name
 588     check_as "$@" <<EOF && enable $name
 589 void foo(void){ __asm__ volatile($code); }
 590 EOF
 591 }
 592
 593 check_yasm(){
 594     log check_yasm "$@"
 595     echo "$1" > $TMPS
 596     log_file $TMPS
 597     shift 1
 598     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 599 }
 600
 601 check_ld(){
 602     log check_ld "$@"
 603     flags=''
 604     libs=''
 605     for f; do
 606         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 607     done
 608     check_cc $($filter_cflags $flags) || return
 609     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 610 }
 611
 612 check_cppflags(){
 613     log check_cppflags "$@"
 614     set -- $($filter_cppflags "$@")
 615     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 616 int x;
 617 EOF
 618 }
 619
 620 check_cflags(){
 621     log check_cflags "$@"
 622     set -- $($filter_cflags "$@")
 623     check_cc "$@" <<EOF && append CFLAGS "$@"
 624 int x;
 625 EOF
 626 }
 627
 628 test_ldflags(){
 629     log test_ldflags "$@"
 630     check_ld "$@" <<EOF
 631 int main(void){ return 0; }
 632 EOF
 633 }
 634
 635 check_ldflags(){
 636     log check_ldflags "$@"
 637     test_ldflags "$@" && add_ldflags "$@"
 638 }
 639
 640 check_header(){
 641     log check_header "$@"
 642     header=$1
 643     shift
 644     disable_safe $header
 645     check_cpp "$@" <<EOF && enable_safe $header
 646 #include <$header>
 647 int x;
 648 EOF
 649 }
 650
 651 check_func(){
 652     log check_func "$@"
 653     func=$1
 654     shift
 655     disable $func
 656     check_ld "$@" <<EOF && enable $func
 657 extern int $func();
 658 int main(void){ $func(); }
 659 EOF
 660 }
 661
 662 check_mathfunc(){
 663     log check_mathfunc "$@"
 664     func=$1
 665     shift
 666     disable $func
 667     check_ld "$@" <<EOF && enable $func
 668 #include <math.h>
 669 float foo(float f) { return $func(f); }
 670 int main(void){ return 0; }
 671 EOF
 672 }
 673
 674 check_func_headers(){
 675     log check_func_headers "$@"
 676     headers=$1
 677     func=$2
 678     shift 2
 679     disable $func
 680     incs=""
 681     for hdr in $headers; do
 682         incs="$incs
 683 #include <$hdr>"
 684     done
 685     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 686 $incs
 687 int main(int argc, char **argv){
 688     return (long) $func;
 689 }
 690 EOF
 691 }
 692
 693 check_cpp_condition(){
 694     log check_cpp_condition "$@"
 695     header=$1
 696     condition=$2
 697     shift 2
 698     check_cpp $($filter_cppflags "$@") <<EOF
 699 #include <$header>
 700 #if !($condition)
 701 #error "unsatisfied condition: $condition"
 702 #endif
 703 EOF
 704 }
 705
 706 check_lib(){
 707     log check_lib "$@"
 708     header="$1"
 709     func="$2"
 710     shift 2
 711     check_header $header && check_func $func "$@" && add_extralibs "$@"
 712 }
 713
 714 check_lib2(){
 715     log check_lib2 "$@"
 716     headers="$1"
 717     func="$2"
 718     shift 2
 719     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 720 }
 721
 722 check_exec(){
 723     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 724 }
 725
 726 check_exec_crash(){
 727     code=$(cat)
 728
 729     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 730     # are safe but may not be available everywhere.  Thus we use
 731     # raise(SIGTERM) instead.  The check is run in a subshell so we
 732     # can redirect the "Terminated" message from the shell.  SIGBUS
 733     # is not defined by standard C so it is used conditionally.
 734
 735     (check_exec "$@") >> $logfile 2>&1 <<EOF
 736 #include <signal.h>
 737 static void sighandler(int sig){
 738     raise(SIGTERM);
 739 }
 740 int main(void){
 741     signal(SIGILL, sighandler);
 742     signal(SIGFPE, sighandler);
 743     signal(SIGSEGV, sighandler);
 744 #ifdef SIGBUS
 745     signal(SIGBUS, sighandler);
 746 #endif
 747     { $code }
 748 }
 749 EOF
 750 }
 751
 752 check_type(){
 753     log check_type "$@"
 754     headers=$1
 755     type=$2
 756     shift 2
 757     disable_safe "$type"
 758     incs=""
 759     for hdr in $headers; do
 760         incs="$incs
 761 #include <$hdr>"
 762     done
 763     check_cc "$@" <<EOF && enable_safe "$type"
 764 $incs
 765 $type v;
 766 EOF
 767 }
 768
 769 check_struct(){
 770     log check_type "$@"
 771     headers=$1
 772     struct=$2
 773     member=$3
 774     shift 3
 775     disable_safe "${struct}_${member}"
 776     incs=""
 777     for hdr in $headers; do
 778         incs="$incs
 779 #include <$hdr>"
 780     done
 781     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 782 $incs
 783 const void *p = &(($struct *)0)->$member;
 784 EOF
 785 }
 786
 787 require(){
 788     name="$1"
 789     header="$2"
 790     func="$3"
 791     shift 3
 792     check_lib $header $func "$@" || die "ERROR: $name not found"
 793 }
 794
 795 require2(){
 796     name="$1"
 797     headers="$2"
 798     func="$3"
 799     shift 3
 800     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 801 }
 802
 803 check_host_cc(){
 804     log check_host_cc "$@"
 805     cat > $TMPC
 806     log_file $TMPC
 807     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 808 }
 809
 810 check_host_cflags(){
 811     log check_host_cflags "$@"
 812     check_host_cc "$@" <<EOF && append host_cflags "$@"
 813 int x;
 814 EOF
 815 }
 816
 817 apply(){
 818     file=$1
 819     shift
 820     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 821 }
 822
 823 cp_if_changed(){
 824     cmp -s "$1" "$2" &&
 825         echo "$2 is unchanged" ||
 826         cp -f "$1" "$2"
 827 }
 828
 829 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 830 # system-dependent things.
 831
 832 COMPONENT_LIST="
 833     bsfs
 834     decoders
 835     demuxers
 836     encoders
 837     filters
 838     hwaccels
 839     indevs
 840     muxers
 841     outdevs
 842     parsers
 843     protocols
 844 "
 845
 846 CONFIG_LIST="
 847     $COMPONENT_LIST
 848     aandct
 849     avcodec
 850     avcore
 851     avdevice
 852     avfilter
 853     avformat
 854     avisynth
 855     bzlib
 856     dct
 857     doc
 858     dwt
 859     dxva2
 860     fastdiv
 861     ffmpeg
 862     ffplay
 863     ffprobe
 864     ffserver
 865     fft
 866     golomb
 867     gpl
 868     gray
 869     h264dsp
 870     hardcoded_tables
 871     huffman
 872     libdc1394
 873     libdirac
 874     libfaac
 875     libgsm
 876     libmp3lame
 877     libnut
 878     libopencore_amrnb
 879     libopencore_amrwb
 880     libopenjpeg
 881     librtmp
 882     libschroedinger
 883     libspeex
 884     libtheora
 885     libvorbis
 886     libvpx
 887     libx264
 888     libxavs
 889     libxvid
 890     lpc
 891     lsp
 892     mdct
 893     memalign_hack
 894     mlib
 895     mpegaudio_hp
 896     network
 897     nonfree
 898     pic
 899     postproc
 900     rdft
 901     runtime_cpudetect
 902     shared
 903     small
 904     sram
 905     static
 906     swscale
 907     swscale_alpha
 908     vaapi
 909     vdpau
 910     version3
 911     x11grab
 912     zlib
 913 "
 914
 915 THREADS_LIST='
 916     pthreads
 917     w32threads
 918 '
 919
 920 ARCH_LIST='
 921     alpha
 922     arm
 923     avr32
 924     avr32_ap
 925     avr32_uc
 926     bfin
 927     ia64
 928     m68k
 929     mips
 930     mips64
 931     parisc
 932     ppc
 933     ppc64
 934     s390
 935     sh4
 936     sparc
 937     sparc64
 938     tomi
 939     x86
 940     x86_32
 941     x86_64
 942 '
 943
 944 ARCH_EXT_LIST='
 945     altivec
 946     amd3dnow
 947     amd3dnowext
 948     armv5te
 949     armv6
 950     armv6t2
 951     armvfp
 952     iwmmxt
 953     mmi
 954     mmx
 955     mmx2
 956     neon
 957     ppc4xx
 958     sse
 959     ssse3
 960     vis
 961 '
 962
 963 HAVE_LIST_PUB='
 964     bigendian
 965     fast_unaligned
 966 '
 967
 968 HAVE_LIST="
 969     $ARCH_EXT_LIST
 970     $HAVE_LIST_PUB
 971     $THREADS_LIST
 972     alsa_asoundlib_h
 973     altivec_h
 974     arpa_inet_h
 975     attribute_may_alias
 976     attribute_packed
 977     bswap
 978     closesocket
 979     cmov
 980     conio_h
 981     dcbzl
 982     dev_bktr_ioctl_bt848_h
 983     dev_bktr_ioctl_meteor_h
 984     dev_ic_bt8xx_h
 985     dev_video_meteor_ioctl_meteor_h
 986     dev_video_bktr_ioctl_bt848_h
 987     dlfcn_h
 988     dlopen
 989     dos_paths
 990     ebp_available
 991     ebx_available
 992     exp2
 993     exp2f
 994     fast_64bit
 995     fast_clz
 996     fast_cmov
 997     fcntl
 998     fork
 999     getaddrinfo
1000     gethrtime
1001     GetProcessMemoryInfo
1002     GetProcessTimes
1003     getrusage
1004     gnu_as
1005     struct_rusage_ru_maxrss
1006     ibm_asm
1007     inet_aton
1008     inline_asm
1009     isatty
1010     ldbrx
1011     libdc1394_1
1012     libdc1394_2
1013     llrint
1014     llrintf
1015     local_aligned_16
1016     local_aligned_8
1017     log2
1018     log2f
1019     loongson
1020     lrint
1021     lrintf
1022     lzo1x_999_compress
1023     machine_ioctl_bt848_h
1024     machine_ioctl_meteor_h
1025     malloc_h
1026     memalign
1027     mkstemp
1028     pld
1029     posix_memalign
1030     round
1031     roundf
1032     sdl
1033     sdl_video_size
1034     setmode
1035     socklen_t
1036     soundcard_h
1037     poll_h
1038     setrlimit
1039     strerror_r
1040     struct_addrinfo
1041     struct_ipv6_mreq
1042     struct_sockaddr_in6
1043     struct_sockaddr_sa_len
1044     struct_sockaddr_storage
1045     symver
1046     symver_gnu_asm
1047     symver_asm_label
1048     sys_mman_h
1049     sys_resource_h
1050     sys_select_h
1051     sys_soundcard_h
1052     sys_videoio_h
1053     ten_operands
1054     termios_h
1055     threads
1056     truncf
1057     vfp_args
1058     VirtualAlloc
1059     winsock2_h
1060     xform_asm
1061     yasm
1062 "
1063
1064 # options emitted with CONFIG_ prefix but not available on command line
1065 CONFIG_EXTRA="
1066     avutil
1067     gplv3
1068     lgplv3
1069 "
1070
1071 CMDLINE_SELECT="
1072     $ARCH_EXT_LIST
1073     $CONFIG_LIST
1074     $THREADS_LIST
1075     asm
1076     cross_compile
1077     debug
1078     extra_warnings
1079     logging
1080     optimizations
1081     stripping
1082     yasm
1083 "
1084
1085 PATHS_LIST='
1086     bindir
1087     datadir
1088     incdir
1089     libdir
1090     mandir
1091     prefix
1092     shlibdir
1093 '
1094
1095 CMDLINE_SET="
1096     $PATHS_LIST
1097     ar
1098     arch
1099     as
1100     build_suffix
1101     cc
1102     cpu
1103     cross_prefix
1104     dep_cc
1105     extra_version
1106     host_cc
1107     host_cflags
1108     host_ldflags
1109     host_libs
1110     host_os
1111     ld
1112     logfile
1113     malloc_prefix
1114     nm
1115     samples
1116     source_path
1117     strip
1118     sysinclude
1119     sysroot
1120     target_exec
1121     target_os
1122     target_path
1123 "
1124
1125 CMDLINE_APPEND="
1126     extra_cflags
1127 "
1128
1129 # code dependency declarations
1130
1131 # architecture extensions
1132
1133 armv5te_deps="arm"
1134 armv6_deps="arm"
1135 armv6t2_deps="arm"
1136 armvfp_deps="arm"
1137 iwmmxt_deps="arm"
1138 neon_deps="arm"
1139
1140 mmi_deps="mips"
1141
1142 altivec_deps="ppc"
1143 ppc4xx_deps="ppc"
1144
1145 vis_deps="sparc"
1146
1147 x86_64_suggest="cmov fast_cmov"
1148 amd3dnow_deps="mmx"
1149 amd3dnowext_deps="amd3dnow"
1150 mmx_deps="x86"
1151 mmx2_deps="mmx"
1152 sse_deps="mmx"
1153 ssse3_deps="sse"
1154
1155 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1156 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1157 fast_unaligned_if_any="armv6 ppc x86"
1158
1159 need_memalign="altivec neon sse"
1160 inline_asm_deps="!tms470"
1161
1162 symver_if_any="symver_asm_label symver_gnu_asm"
1163
1164 # subsystems
1165 dct_select="rdft"
1166 mdct_select="fft"
1167 rdft_select="fft"
1168
1169 # decoders / encoders / hardware accelerators
1170 aac_decoder_select="mdct rdft"
1171 aac_encoder_select="mdct"
1172 ac3_decoder_select="mdct ac3_parser"
1173 alac_encoder_select="lpc"
1174 amrnb_decoder_select="lsp"
1175 atrac1_decoder_select="mdct"
1176 atrac3_decoder_select="mdct"
1177 binkaudio_dct_decoder_select="mdct rdft dct"
1178 binkaudio_rdft_decoder_select="mdct rdft"
1179 cavs_decoder_select="golomb"
1180 cook_decoder_select="mdct"
1181 cscd_decoder_suggest="zlib"
1182 dca_decoder_select="mdct"
1183 dnxhd_encoder_select="aandct"
1184 dxa_decoder_select="zlib"
1185 eac3_decoder_select="ac3_decoder"
1186 eamad_decoder_select="aandct"
1187 eatgq_decoder_select="aandct"
1188 eatqi_decoder_select="aandct"
1189 ffv1_decoder_select="golomb"
1190 flac_decoder_select="golomb"
1191 flac_encoder_select="golomb lpc"
1192 flashsv_decoder_select="zlib"
1193 flashsv_encoder_select="zlib"
1194 flv_decoder_select="h263_decoder"
1195 flv_encoder_select="h263_encoder"
1196 fraps_decoder_select="huffman"
1197 h261_encoder_select="aandct"
1198 h263_decoder_select="h263_parser"
1199 h263_encoder_select="aandct"
1200 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1201 h263i_decoder_select="h263_decoder"
1202 h263p_encoder_select="h263_encoder"
1203 h264_decoder_select="golomb h264dsp"
1204 h264_dxva2_hwaccel_deps="dxva2api_h"
1205 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1206 h264_vaapi_hwaccel_select="vaapi"
1207 h264_vdpau_decoder_select="vdpau h264_decoder"
1208 imc_decoder_select="fft mdct"
1209 jpegls_decoder_select="golomb"
1210 jpegls_encoder_select="golomb"
1211 ljpeg_encoder_select="aandct"
1212 loco_decoder_select="golomb"
1213 mjpeg_encoder_select="aandct"
1214 mlp_decoder_select="mlp_parser"
1215 mp1float_decoder_select="dct"
1216 mp2float_decoder_select="dct"
1217 mp3adufloat_decoder_select="dct"
1218 mp3float_decoder_select="dct"
1219 mp3on4float_decoder_select="dct"
1220 mpeg1video_encoder_select="aandct"
1221 mpeg2video_encoder_select="aandct"
1222 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1223 mpeg4_encoder_select="h263_encoder"
1224 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1225 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1226 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1227 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1228 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1229 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1230 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1231 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1232 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1233 msmpeg4v1_decoder_select="h263_decoder"
1234 msmpeg4v1_encoder_select="h263_encoder"
1235 msmpeg4v2_decoder_select="h263_decoder"
1236 msmpeg4v2_encoder_select="h263_encoder"
1237 msmpeg4v3_decoder_select="h263_decoder"
1238 msmpeg4v3_encoder_select="h263_encoder"
1239 nellymoser_decoder_select="mdct"
1240 nellymoser_encoder_select="mdct"
1241 png_decoder_select="zlib"
1242 png_encoder_select="zlib"
1243 qcelp_decoder_select="lsp"
1244 qdm2_decoder_select="mdct rdft"
1245 ra_144_encoder_select="lpc"
1246 rv10_decoder_select="h263_decoder"
1247 rv10_encoder_select="h263_encoder"
1248 rv20_decoder_select="h263_decoder"
1249 rv20_encoder_select="h263_encoder"
1250 rv30_decoder_select="golomb h264dsp"
1251 rv40_decoder_select="golomb h264dsp"
1252 shorten_decoder_select="golomb"
1253 sipr_decoder_select="lsp"
1254 snow_decoder_select="dwt"
1255 snow_encoder_select="aandct dwt"
1256 sonic_decoder_select="golomb"
1257 sonic_encoder_select="golomb"
1258 sonic_ls_encoder_select="golomb"
1259 svq1_encoder_select="aandct"
1260 svq3_decoder_select="golomb h264dsp"
1261 svq3_decoder_suggest="zlib"
1262 theora_decoder_select="vp3_decoder"
1263 tiff_decoder_suggest="zlib"
1264 tiff_encoder_suggest="zlib"
1265 truehd_decoder_select="mlp_decoder"
1266 tscc_decoder_select="zlib"
1267 twinvq_decoder_select="mdct lsp"
1268 vc1_decoder_select="h263_decoder"
1269 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1270 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1271 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1272 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1273 vorbis_decoder_select="mdct"
1274 vorbis_encoder_select="mdct"
1275 vp6_decoder_select="huffman"
1276 vp6a_decoder_select="vp6_decoder"
1277 vp6f_decoder_select="vp6_decoder"
1278 vp8_decoder_select="h264dsp"
1279 wmapro_decoder_select="mdct"
1280 wmav1_decoder_select="mdct"
1281 wmav1_encoder_select="mdct"
1282 wmav2_decoder_select="mdct"
1283 wmav2_encoder_select="mdct"
1284 wmavoice_decoder_select="lsp rdft dct mdct"
1285 wmv1_decoder_select="h263_decoder"
1286 wmv1_encoder_select="h263_encoder"
1287 wmv2_decoder_select="h263_decoder"
1288 wmv2_encoder_select="h263_encoder"
1289 wmv3_decoder_select="vc1_decoder"
1290 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1291 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1292 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1293 zlib_decoder_select="zlib"
1294 zlib_encoder_select="zlib"
1295 zmbv_decoder_select="zlib"
1296 zmbv_encoder_select="zlib"
1297
1298 vaapi_deps="va_va_h"
1299 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1300
1301 # parsers
1302 h264_parser_select="golomb h264dsp"
1303
1304 # external libraries
1305 libdirac_decoder_deps="libdirac !libschroedinger"
1306 libdirac_encoder_deps="libdirac"
1307 libfaac_encoder_deps="libfaac"
1308 libgsm_decoder_deps="libgsm"
1309 libgsm_encoder_deps="libgsm"
1310 libgsm_ms_decoder_deps="libgsm"
1311 libgsm_ms_encoder_deps="libgsm"
1312 libmp3lame_encoder_deps="libmp3lame"
1313 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1314 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1315 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1316 libopenjpeg_decoder_deps="libopenjpeg"
1317 libschroedinger_decoder_deps="libschroedinger"
1318 libschroedinger_encoder_deps="libschroedinger"
1319 libspeex_decoder_deps="libspeex"
1320 libtheora_encoder_deps="libtheora"
1321 libvorbis_encoder_deps="libvorbis"
1322 libvpx_decoder_deps="libvpx"
1323 libvpx_encoder_deps="libvpx"
1324 libx264_encoder_deps="libx264"
1325 libxavs_encoder_deps="libxavs"
1326 libxvid_encoder_deps="libxvid"
1327
1328 # demuxers / muxers
1329 ac3_demuxer_deps="ac3_parser"
1330 asf_stream_muxer_select="asf_muxer"
1331 avisynth_demuxer_deps="avisynth"
1332 dirac_demuxer_deps="dirac_parser"
1333 eac3_demuxer_select="ac3_parser"
1334 ipod_muxer_select="mov_muxer"
1335 libnut_demuxer_deps="libnut"
1336 libnut_muxer_deps="libnut"
1337 matroska_audio_muxer_select="matroska_muxer"
1338 matroska_demuxer_suggest="zlib bzlib"
1339 mov_demuxer_suggest="zlib"
1340 mp3_demuxer_deps="mpegaudio_parser"
1341 mp4_muxer_select="mov_muxer"
1342 mpegtsraw_demuxer_select="mpegts_demuxer"
1343 mxf_d10_muxer_select="mxf_muxer"
1344 ogg_demuxer_select="golomb"
1345 psp_muxer_select="mov_muxer"
1346 rtsp_demuxer_deps="sdp_demuxer"
1347 rtsp_muxer_deps="sdp_demuxer"
1348 rtsp_muxer_select="rtp_muxer"
1349 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1350 sdp_demuxer_select="asf_demuxer rm_demuxer"
1351 spdif_muxer_select="aac_parser"
1352 tg2_muxer_select="mov_muxer"
1353 tgp_muxer_select="mov_muxer"
1354 w64_demuxer_deps="wav_demuxer"
1355
1356 # indevs / outdevs
1357 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1358 alsa_outdev_deps="alsa_asoundlib_h"
1359 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1360 dv1394_indev_deps="dv1394 dv_demuxer"
1361 jack_indev_deps="jack_jack_h"
1362 libdc1394_indev_deps="libdc1394"
1363 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1364 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1365 v4l_indev_deps="linux_videodev_h"
1366 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1367 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1368 vfwcap_indev_extralibs="-lavicap32"
1369 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1370 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1371
1372 # protocols
1373 gopher_protocol_deps="network"
1374 http_protocol_deps="network"
1375 http_protocol_select="tcp_protocol"
1376 mmst_protocol_deps="network"
1377 rtmp_protocol_select="tcp_protocol"
1378 rtp_protocol_select="udp_protocol"
1379 tcp_protocol_deps="network"
1380 udp_protocol_deps="network"
1381
1382 # libraries
1383 avdevice_deps="avcodec avformat"
1384 avformat_deps="avcodec"
1385
1386 # programs
1387 ffmpeg_deps="avcodec avformat swscale"
1388 ffmpeg_select="buffer_filter"
1389 ffplay_deps="avcodec avformat swscale sdl"
1390 ffplay_select="rdft"
1391 ffprobe_deps="avcodec avformat"
1392 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1393 ffserver_extralibs='$ldl'
1394
1395 doc_deps="texi2html"
1396
1397 # tests
1398
1399 test_deps(){
1400     suf1=$1
1401     suf2=$2
1402     shift 2
1403     for v; do
1404         dep=${v%=*}
1405         tests=${v#*=}
1406         for name in ${tests}; do
1407             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1408         done
1409     done
1410 }
1411
1412 set_ne_test_deps(){
1413     eval ${1}_be_test_deps="bigendian"
1414     eval ${1}_le_test_deps="!bigendian"
1415 }
1416
1417 test_deps _encoder _decoder                                             \
1418     ac3                                                                 \
1419     adpcm_g726=g726                                                     \
1420     adpcm_ima_qt                                                        \
1421     adpcm_ima_wav                                                       \
1422     adpcm_ms                                                            \
1423     adpcm_swf                                                           \
1424     adpcm_yamaha=adpcm_yam                                              \
1425     alac                                                                \
1426     asv1                                                                \
1427     asv2                                                                \
1428     bmp                                                                 \
1429     dnxhd="hdxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1430     dvvideo="dv dv50"                                                   \
1431     ffv1                                                                \
1432     flac                                                                \
1433     flashsv                                                             \
1434     flv                                                                 \
1435     gif                                                                 \
1436     h261                                                                \
1437     h263="h263 h263p"                                                   \
1438     huffyuv                                                             \
1439     jpegls                                                              \
1440     mjpeg="jpg mjpeg ljpeg"                                             \
1441     mp2                                                                 \
1442     mpeg1video="mpeg mpeg1b"                                            \
1443     mpeg2video="mpeg2 mpeg2thread"                                      \
1444     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1445     msmpeg4v3=msmpeg4                                                   \
1446     msmpeg4v2                                                           \
1447     pbm=pbmpipe                                                         \
1448     pcx                                                                 \
1449     pgm="pgm pgmpipe"                                                   \
1450     ppm="ppm ppmpipe"                                                   \
1451     rawvideo="rgb yuv"                                                  \
1452     roq                                                                 \
1453     rv10                                                                \
1454     rv20                                                                \
1455     sgi                                                                 \
1456     snow="snow snowll"                                                  \
1457     svq1                                                                \
1458     targa=tga                                                           \
1459     tiff                                                                \
1460     wmav1                                                               \
1461     wmav2                                                               \
1462     wmv1                                                                \
1463     wmv2                                                                \
1464
1465 test_deps _muxer _demuxer                                               \
1466     aiff                                                                \
1467     pcm_alaw=alaw                                                       \
1468     asf                                                                 \
1469     au                                                                  \
1470     avi                                                                 \
1471     dv=dv_fmt                                                           \
1472     ffm                                                                 \
1473     flv=flv_fmt                                                         \
1474     gxf                                                                 \
1475     matroska=mkv                                                        \
1476     mmf                                                                 \
1477     mov                                                                 \
1478     pcm_mulaw=mulaw                                                     \
1479     mxf                                                                 \
1480     nut                                                                 \
1481     ogg                                                                 \
1482     rawvideo=pixfmt                                                     \
1483     rm                                                                  \
1484     swf                                                                 \
1485     mpegts=ts                                                           \
1486     voc                                                                 \
1487     wav                                                                 \
1488     yuv4mpegpipe=yuv4mpeg                                               \
1489
1490 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1491
1492 set_ne_test_deps pixdesc
1493 set_ne_test_deps pixfmts_crop
1494 set_ne_test_deps pixfmts_null
1495 set_ne_test_deps pixfmts_pad
1496 set_ne_test_deps pixfmts_scale
1497 set_ne_test_deps pixfmts_vflip
1498
1499 # default parameters
1500
1501 logfile="config.log"
1502
1503 # installation paths
1504 prefix_default="/usr/local"
1505 bindir_default='${prefix}/bin'
1506 datadir_default='${prefix}/share/ffmpeg'
1507 incdir_default='${prefix}/include'
1508 libdir_default='${prefix}/lib'
1509 mandir_default='${prefix}/share/man'
1510 shlibdir_default="$libdir_default"
1511
1512 # toolchain
1513 ar_default="ar"
1514 cc_default="gcc"
1515 cc_version=\"unknown\"
1516 host_cc_default="gcc"
1517 ln_s="ln -sf"
1518 nm_default="nm"
1519 objformat="elf"
1520 ranlib="ranlib"
1521 strip_default="strip"
1522 yasmexe="yasm"
1523 nogas=":"
1524
1525 nm_opts='-g'
1526
1527 # machine
1528 arch_default=$(uname -m)
1529 cpu="generic"
1530
1531 # OS
1532 target_os_default=$(tolower $(uname -s))
1533 host_os=$target_os_default
1534
1535 # configurable options
1536 enable avcodec
1537 enable avcore
1538 enable avdevice
1539 enable avfilter
1540 enable avformat
1541 enable avutil
1542 enable asm
1543 enable debug
1544 enable doc
1545 enable fastdiv
1546 enable ffmpeg
1547 enable ffplay
1548 enable ffprobe
1549 enable ffserver
1550 enable mpegaudio_hp
1551 enable network
1552 enable optimizations
1553 enable protocols
1554 enable static
1555 enable stripping
1556 enable swscale
1557 enable swscale_alpha
1558
1559 # build settings
1560 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1561 FFSERVERLDFLAGS=-Wl,-E
1562 LIBPREF="lib"
1563 LIBSUF=".a"
1564 FULLNAME='$(NAME)$(BUILDSUF)'
1565 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1566 SLIBPREF="lib"
1567 SLIBSUF=".so"
1568 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1569 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1570 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1571 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1572
1573 CC_O='-o $@'
1574
1575 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1576 host_libs='-lm'
1577
1578 target_path='$(CURDIR)'
1579
1580 # since the object filename is not given with the -MM flag, the compiler
1581 # is only able to print the basename, and we must add the path ourselves
1582 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1583 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1584
1585 # find source path
1586 source_path="$(dirname "$0")"
1587 enable source_path_used
1588 if test -f configure; then
1589     source_path="$(pwd)"
1590     disable source_path_used
1591 else
1592     source_path="$(cd "$source_path"; pwd)"
1593     echo "$source_path" | grep -q '[[:blank:]]' &&
1594         die "Out of tree builds are impossible with whitespace in source path."
1595     test -e "$source_path/config.h" &&
1596         die "Out of tree builds are impossible with config.h in source dir."
1597 fi
1598
1599 for v in "$@"; do
1600     r=${v#*=}
1601     l=${v%"$r"}
1602     r=$(sh_quote "$r")
1603     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1604 done
1605
1606 find_things(){
1607     thing=$1
1608     pattern=$2
1609     file=$source_path/$3
1610     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1611 }
1612
1613 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1614 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1615 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1616 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1617 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1618 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1619 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1620 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1621 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1622 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1623 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1624
1625 find_tests(){
1626     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1627 }
1628
1629 ACODEC_TESTS=$(find_tests acodec)
1630 VCODEC_TESTS=$(find_tests vsynth1)
1631 LAVF_TESTS=$(find_tests lavf)
1632 LAVFI_TESTS=$(find_tests lavfi)
1633 SEEK_TESTS=$(find_tests seek seek_)
1634
1635 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1636
1637 for n in $COMPONENT_LIST; do
1638     v=$(toupper ${n%s})_LIST
1639     eval enable \$$v
1640     eval ${n}_if_any="\$$v"
1641 done
1642
1643 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1644
1645 die_unknown(){
1646     echo "Unknown option \"$1\"."
1647     echo "See $0 --help for available options."
1648     exit 1
1649 }
1650
1651 show_list() {
1652     suffix=_$1
1653     shift
1654     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1655     exit 0
1656 }
1657
1658 for opt do
1659     optval="${opt#*=}"
1660     case "$opt" in
1661     --extra-ldflags=*) add_ldflags $optval
1662     ;;
1663     --extra-libs=*) add_extralibs $optval
1664     ;;
1665     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1666     ;;
1667     --enable-debug=*) debuglevel="$optval"
1668     ;;
1669     --disable-everything)
1670     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1671     ;;
1672     --enable-*=*|--disable-*=*)
1673     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1674     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1675     eval list=\$$(toupper $thing)_LIST
1676     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1677     $action $(filter "$name" $list)
1678     ;;
1679     --enable-?*|--disable-?*)
1680     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1681     if is_in $option $COMPONENT_LIST; then
1682         test $action = disable && action=unset
1683         eval $action \$$(toupper ${option%s})_LIST
1684     elif is_in $option $CMDLINE_SELECT; then
1685         $action $option
1686     else
1687         die_unknown $opt
1688     fi
1689     ;;
1690     --list-*)
1691         NAME="${opt#--list-}"
1692         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1693         NAME=${NAME%s}
1694         eval show_list $NAME \$$(toupper $NAME)_LIST
1695     ;;
1696     --help|-h) show_help
1697     ;;
1698     *)
1699     optname="${opt%%=*}"
1700     optname="${optname#--}"
1701     optname=$(echo "$optname" | sed 's/-/_/g')
1702     if is_in $optname $CMDLINE_SET; then
1703         eval $optname='$optval'
1704     elif is_in $optname $CMDLINE_APPEND; then
1705         append $optname "$optval"
1706     else
1707          die_unknown $opt
1708     fi
1709     ;;
1710     esac
1711 done
1712
1713 disabled logging && logfile=/dev/null
1714
1715 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1716 set >> $logfile
1717
1718 test -n "$cross_prefix" && enable cross_compile
1719
1720 if enabled cross_compile; then
1721     test -n "$arch" && test -n "$target_os" ||
1722         die "Must specify target arch and OS when cross-compiling"
1723 fi
1724
1725 set_default arch target_os
1726
1727 ar_default="${cross_prefix}${ar_default}"
1728 cc_default="${cross_prefix}${cc_default}"
1729 nm_default="${cross_prefix}${nm_default}"
1730 ranlib="${cross_prefix}${ranlib}"
1731 strip_default="${cross_prefix}${strip_default}"
1732
1733 sysinclude_default="${sysroot}/usr/include"
1734
1735 set_default cc nm strip sysinclude
1736 enabled cross_compile || host_cc_default=$cc
1737 set_default host_cc
1738
1739 exesuf() {
1740     case $1 in
1741         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1742     esac
1743 }
1744
1745 EXESUF=$(exesuf $target_os)
1746 HOSTEXESUF=$(exesuf $host_os)
1747
1748 # set temporary file name
1749 : ${TMPDIR:=$TEMPDIR}
1750 : ${TMPDIR:=$TMP}
1751 : ${TMPDIR:=/tmp}
1752
1753 if ! check_cmd type mktemp; then
1754     # simple replacement for missing mktemp
1755     # NOT SAFE FOR GENERAL USE
1756     mktemp(){
1757         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1758     }
1759 fi
1760
1761 tmpfile(){
1762     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1763         (set -C; exec > $tmp) 2>/dev/null ||
1764         die "Unable to create temporary file in $TMPDIR."
1765     append TMPFILES $tmp
1766     eval $1=$tmp
1767 }
1768
1769 trap 'rm -f -- $TMPFILES' EXIT
1770 trap exit HUP INT TERM
1771
1772 tmpfile TMPC  .c
1773 tmpfile TMPE  $EXESUF
1774 tmpfile TMPH  .h
1775 tmpfile TMPO  .o
1776 tmpfile TMPS  .S
1777 tmpfile TMPV  .ver
1778 tmpfile TMPSH .sh
1779
1780 unset -f mktemp
1781
1782 # make sure we can execute files in $TMPDIR
1783 cat > $TMPSH 2>> $logfile <<EOF
1784 #! /bin/sh
1785 EOF
1786 chmod +x $TMPSH >> $logfile 2>&1
1787 if ! $TMPSH >> $logfile 2>&1; then
1788     cat <<EOF
1789 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1790 variable to another directory and make sure that it is not mounted noexec.
1791 EOF
1792     die "Sanity test failed."
1793 fi
1794
1795 filter_cflags=echo
1796 filter_cppflags=echo
1797 filter_asflags=echo
1798
1799 if   $cc -v 2>&1 | grep -qi ^gcc; then
1800     cc_type=gcc
1801     cc_version=__VERSION__
1802     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1803     cc_ident="gcc $($cc -dumpversion) $gcc_extra_ver"
1804     if ! $cc -dumpversion | grep -q '^2\.'; then
1805         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1806         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1807     fi
1808     speed_cflags='-O3'
1809     size_cflags='-Os'
1810 elif $cc --version 2>/dev/null | grep -q Intel; then
1811     cc_type=icc
1812     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1813     cc_ident=$($cc --version | head -n1)
1814     CC_DEPFLAGS='-MMD'
1815     AS_DEPFLAGS='-MMD'
1816     speed_cflags='-O3'
1817     size_cflags='-Os'
1818     noopt_cflags='-O1'
1819 elif $cc -v 2>&1 | grep -q xlc; then
1820     cc_type=xlc
1821     cc_version="AV_STRINGIFY(__IBMC__)"
1822     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1823     speed_cflags='-O5'
1824     size_cflags='-O5 -qcompact'
1825 elif $cc -V 2>/dev/null | grep -q Compaq; then
1826     cc_type=ccc
1827     cc_version="AV_STRINGIFY(__DECC_VER)"
1828     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1829     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1830     debuglevel=3
1831     add_ldflags -Wl,-z,now # calls to libots crash without this
1832     speed_cflags='-fast'
1833     size_cflags='-O1'
1834 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1835     test -d "$sysroot" || die "No valid sysroot specified."
1836     cc_type=armcc
1837     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1838     cc_ident=$($cc --vsn | head -n1)
1839     armcc_conf="$PWD/armcc.conf"
1840     $cc --arm_linux_configure                 \
1841         --arm_linux_config_file="$armcc_conf" \
1842         --configure_sysroot="$sysroot"        \
1843         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1844         die "Error creating armcc configuration file."
1845     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1846     as_default="${cross_prefix}gcc"
1847     CC_DEPFLAGS='-MMD'
1848     AS_DEPFLAGS='-MMD'
1849     speed_cflags='-O3'
1850     size_cflags='-Os'
1851 elif $cc -version 2>/dev/null | grep -q TMS470; then
1852     cc_type=tms470
1853     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1854     cc_ident=$($cc -version | head -n1 | tr -s ' ')
1855     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1856     CC_O='-fr=$(@D)'
1857     as_default="${cross_prefix}gcc"
1858     ld_default="${cross_prefix}gcc"
1859     TMPO=$(basename $TMPC .c).o
1860     append TMPFILES $TMPO
1861     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1862     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1863     AS_DEPFLAGS='-MMD'
1864     speed_cflags='-O3 -mf=5'
1865     size_cflags='-O3 -mf=2'
1866     filter_cflags=tms470_flags
1867     tms470_flags(){
1868         for flag; do
1869             case $flag in
1870                 -march=*|-mcpu=*)
1871                     case "${flag#*=}" in
1872                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1873                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1874                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1875                         armv6*|arm11*)          echo -mv=6   ;;
1876                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1877                                                 echo -mv=5e  ;;
1878                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1879                     esac
1880                     ;;
1881                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1882                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1883                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1884                 -msoft-float)   echo --float_support=vfplib       ;;
1885                 -O[0-3]|-mf=*)  echo $flag                        ;;
1886                 -g)             echo -g -mn                       ;;
1887                 -pds=*)         echo $flag                        ;;
1888             esac
1889         done
1890     }
1891 elif $cc -v 2>&1 | grep -q clang; then
1892     cc_type=clang
1893     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1894         cc_version=__clang_version__ || cc_version=__VERSION__
1895     cc_ident=$($cc --version | head -n1)
1896     CC_DEPFLAGS='-MMD'
1897     AS_DEPFLAGS='-MMD'
1898     speed_cflags='-O3'
1899     size_cflags='-Os'
1900 elif $cc -V 2>&1 | grep -q Sun; then
1901     cc_type=suncc
1902     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1903     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
1904     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1905     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1906     speed_cflags='-O5'
1907     size_cflags='-O5 -xspace'
1908     filter_cflags=suncc_flags
1909     suncc_flags(){
1910         for flag; do
1911             case $flag in
1912                 -march=*|-mcpu=*)
1913                     case "${flag#*=}" in
1914                         native)                   echo -xtarget=native       ;;
1915                         v9|niagara)               echo -xarch=sparc          ;;
1916                         ultrasparc)               echo -xarch=sparcvis       ;;
1917                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1918                         i586|pentium)             echo -xchip=pentium        ;;
1919                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1920                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1921                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1922                         pentium4*)          echo -xtarget=pentium4           ;;
1923                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1924                         *-sse3)             echo -xarch=sse3                 ;;
1925                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1926                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1927                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1928                         k8|opteron|athlon64|athlon-fx)
1929                                                   echo -xarch=sse2a          ;;
1930                         athlon*)                  echo -xarch=pentium_proa   ;;
1931                     esac
1932                     ;;
1933                 -std=c99)             echo -xc99              ;;
1934                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1935                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1936                 -W*,*)                echo $flag              ;;
1937                 -f*-*|-W*)                                    ;;
1938                 *)                    echo $flag              ;;
1939             esac
1940         done
1941     }
1942 elif $cc -v 2>&1 | grep -q PathScale; then
1943     cc_type=pathscale
1944     cc_version=__PATHSCALE__
1945     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
1946     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1947     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1948     speed_cflags='-O2'
1949     size_cflags='-Os'
1950 fi
1951
1952 test -n "$cc_type" && enable $cc_type ||
1953     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1954
1955 : ${as_default:=$cc}
1956 : ${dep_cc_default:=$cc}
1957 : ${ld_default:=$cc}
1958 set_default ar as dep_cc ld
1959
1960 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1961 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1962
1963 add_cflags $extra_cflags
1964 add_asflags $extra_cflags
1965
1966 if test -n "$sysroot"; then
1967     case "$cc_type" in
1968         gcc)
1969             add_cppflags --sysroot="$sysroot"
1970             add_ldflags --sysroot="$sysroot"
1971         ;;
1972         tms470)
1973             add_cppflags -I"$sysinclude"
1974             add_ldflags  --sysroot="$sysroot"
1975         ;;
1976         clang)
1977             add_cppflags -isysroot "$sysroot"
1978             add_ldflags -isysroot "$sysroot"
1979         ;;
1980     esac
1981 fi
1982
1983 if test "$cpu" = host; then
1984     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1985
1986     case "$cc_type" in
1987         gcc)
1988             check_native(){
1989                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1990                 sed -n "/$1=/{
1991                             s/.*$1=\\([^ ]*\\).*/\\1/
1992                             p
1993                             q
1994                         }" $TMPE
1995             }
1996             cpu=$(check_native -march || check_native -mcpu)
1997         ;;
1998     esac
1999
2000     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2001 fi
2002
2003 # Deal with common $arch aliases
2004 case "$arch" in
2005     arm*)
2006         arch="arm"
2007     ;;
2008     mips|mipsel|IP*)
2009         arch="mips"
2010     ;;
2011     mips64*)
2012         arch="mips"
2013         subarch="mips64"
2014     ;;
2015     parisc|hppa)
2016         arch="parisc"
2017     ;;
2018     parisc64|hppa64)
2019         arch="parisc"
2020         subarch="parisc64"
2021     ;;
2022     "Power Macintosh"|ppc|powerpc)
2023         arch="ppc"
2024     ;;
2025     ppc64|powerpc64)
2026         arch="ppc"
2027         subarch="ppc64"
2028     ;;
2029     s390|s390x)
2030         arch="s390"
2031     ;;
2032     sh4|sh)
2033         arch="sh4"
2034     ;;
2035     sun4u|sparc64)
2036         arch="sparc"
2037         subarch="sparc64"
2038     ;;
2039     i[3-6]86|i86pc|BePC|x86_64|amd64)
2040         arch="x86"
2041     ;;
2042 esac
2043
2044 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2045 enable $arch
2046
2047 # Add processor-specific flags
2048 if test "$cpu" = generic; then
2049     : do nothing
2050 elif enabled ppc; then
2051
2052     case $(tolower $cpu) in
2053         601|ppc601|powerpc601)
2054             cpuflags="-mcpu=601"
2055             disable altivec
2056         ;;
2057         603*|ppc603*|powerpc603*)
2058             cpuflags="-mcpu=603"
2059             disable altivec
2060         ;;
2061         604*|ppc604*|powerpc604*)
2062             cpuflags="-mcpu=604"
2063             disable altivec
2064         ;;
2065         g3|75*|ppc75*|powerpc75*)
2066             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2067             disable altivec
2068         ;;
2069         g4|745*|ppc745*|powerpc745*)
2070             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2071         ;;
2072         74*|ppc74*|powerpc74*)
2073             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2074         ;;
2075         g5|970|ppc970|powerpc970|power4*)
2076             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2077         ;;
2078         cell)
2079             cpuflags="-mcpu=cell"
2080             enable ldbrx
2081         ;;
2082         e500v2)
2083             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2084             disable altivec
2085         ;;
2086         e500)
2087             cpuflags="-mcpu=8540 -mhard-float"
2088             disable altivec
2089         ;;
2090     esac
2091
2092 elif enabled x86; then
2093
2094     case $cpu in
2095         i[345]86|pentium)
2096             cpuflags="-march=$cpu"
2097             disable mmx
2098         ;;
2099         # targets that do NOT support conditional mov (cmov)
2100         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2101             cpuflags="-march=$cpu"
2102             disable cmov
2103         ;;
2104         # targets that do support conditional mov (cmov)
2105         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
2106             cpuflags="-march=$cpu"
2107             enable cmov
2108             enable fast_cmov
2109         ;;
2110         # targets that do support conditional mov but on which it's slow
2111         pentium4|pentium4m|prescott|nocona)
2112             cpuflags="-march=$cpu"
2113             enable cmov
2114             disable fast_cmov
2115         ;;
2116     esac
2117
2118 elif enabled sparc; then
2119
2120     case $cpu in
2121         niagara)
2122             cpuflags="-mcpu=$cpu"
2123             disable vis
2124         ;;
2125         sparc64)
2126             cpuflags="-mcpu=v9"
2127         ;;
2128     esac
2129
2130 elif enabled arm; then
2131
2132     case $cpu in
2133         armv*)
2134             cpuflags="-march=$cpu"
2135             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2136         ;;
2137         *)
2138             cpuflags="-mcpu=$cpu"
2139             case $cpu in
2140                 cortex-a*)                               subarch=armv7a  ;;
2141                 cortex-r*)                               subarch=armv7r  ;;
2142                 cortex-m*)                               subarch=armv7m  ;;
2143                 arm11*)                                  subarch=armv6   ;;
2144                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2145                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2146             esac
2147         ;;
2148     esac
2149
2150 elif enabled alpha; then
2151
2152     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2153
2154 elif enabled bfin; then
2155
2156     cpuflags="-mcpu=$cpu"
2157
2158 elif enabled mips; then
2159
2160     cpuflags="-march=$cpu"
2161
2162 elif enabled avr32; then
2163
2164     case $cpu in
2165         ap7[02]0[0-2])
2166             subarch="avr32_ap"
2167             cpuflags="-mpart=$cpu"
2168         ;;
2169         ap)
2170             subarch="avr32_ap"
2171             cpuflags="-march=$cpu"
2172         ;;
2173         uc3[ab]*)
2174             subarch="avr32_uc"
2175             cpuflags="-mcpu=$cpu"
2176         ;;
2177         uc)
2178             subarch="avr32_uc"
2179             cpuflags="-march=$cpu"
2180         ;;
2181     esac
2182
2183 fi
2184
2185 add_cflags $cpuflags
2186 add_asflags $cpuflags
2187
2188 # compiler sanity check
2189 check_exec <<EOF
2190 int main(void){ return 0; }
2191 EOF
2192 if test "$?" != 0; then
2193     echo "$cc is unable to create an executable file."
2194     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2195         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2196         echo "Only do this if you know what cross compiling means."
2197     fi
2198     die "C compiler test failed."
2199 fi
2200
2201 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2202 check_cflags -std=c99
2203 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2204 #include <stdlib.h>
2205 EOF
2206 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2207 #include <stdlib.h>
2208 EOF
2209
2210 check_host_cflags -std=c99
2211
2212 case "$arch" in
2213     alpha|ia64|mips|parisc|sparc)
2214         spic=$shared
2215     ;;
2216     x86)
2217         subarch="x86_32"
2218         check_cc <<EOF && subarch="x86_64"
2219         int test[(int)sizeof(char*) - 7];
2220 EOF
2221         if test "$subarch" = "x86_64"; then
2222             spic=$shared
2223         fi
2224     ;;
2225 esac
2226
2227 enable $subarch
2228 enabled spic && enable pic
2229
2230 # OS specific
2231 case $target_os in
2232     haiku)
2233         prefix_default="/boot/common"
2234         network_extralibs="-lnetwork"
2235         ;;
2236     sunos)
2237         FFSERVERLDFLAGS=""
2238         SHFLAGS='-shared -Wl,-h,$$(@F)'
2239         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2240         network_extralibs="-lsocket -lnsl"
2241         add_cppflags -D__EXTENSIONS__
2242         nm_opts='-P -g'
2243         ;;
2244     netbsd)
2245         oss_indev_extralibs="-lossaudio"
2246         oss_outdev_extralibs="-lossaudio"
2247         add_cppflags -D_XOPEN_SOURCE=600
2248         ;;
2249     openbsd)
2250         enable malloc_aligned
2251         # On OpenBSD 4.5. the compiler does not use PIC unless
2252         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2253         # however the generated executable will not do anything
2254         # (simply quits with exit-code 1, no crash, no output).
2255         # Thus explicitly enable PIC here.
2256         enable pic
2257         SHFLAGS='-shared'
2258         oss_indev_extralibs="-lossaudio"
2259         oss_outdev_extralibs="-lossaudio"
2260         ;;
2261     freebsd|dragonfly)
2262         enable malloc_aligned
2263         ;;
2264     bsd/os)
2265         add_extralibs -lpoll -lgnugetopt
2266         strip="strip -d"
2267         ;;
2268     darwin)
2269         enable malloc_aligned
2270         gas="gas-preprocessor.pl $cc"
2271         enabled ppc && add_asflags -force_cpusubtype_ALL
2272         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2273         strip="${strip} -x"
2274         add_ldflags -Wl,-dynamic,-search_paths_first
2275         SLIBSUF=".dylib"
2276         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2277         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2278         FFSERVERLDFLAGS=-Wl,-bind_at_load
2279         objformat="macho"
2280         enabled x86_64 && objformat="macho64"
2281         enabled_any pic shared ||
2282             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2283         ;;
2284     mingw32*)
2285         if test $target_os = "mingw32ce"; then
2286             disable network
2287         else
2288             target_os=mingw32
2289         fi
2290         LIBTARGET=i386
2291         if enabled x86_64; then
2292             enable malloc_aligned
2293             LIBTARGET=x64
2294         elif enabled arm; then
2295             LIBTARGET=arm
2296         fi
2297         shlibdir_default="$bindir_default"
2298         disable ffserver
2299         SLIBPREF=""
2300         SLIBSUF=".dll"
2301         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2302         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2303         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2304         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2305             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2306             install -d "$(LIBDIR)"; \
2307             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2308         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2309         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2310         objformat="win32"
2311         enable dos_paths
2312         check_cflags -fno-common
2313         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2314                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2315                 die "ERROR: MinGW runtime version must be >= 3.15."
2316         ;;
2317     cygwin*)
2318         target_os=cygwin
2319         shlibdir_default="$bindir_default"
2320         SLIBPREF="cyg"
2321         SLIBSUF=".dll"
2322         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2323         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2324         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2325         objformat="win32"
2326         enable dos_paths
2327         check_cflags -fno-common
2328         ;;
2329     *-dos|freedos|opendos)
2330         disable ffplay ffserver
2331         disable $INDEV_LIST $OUTDEV_LIST
2332         network_extralibs="-lsocket"
2333         objformat="coff"
2334         enable dos_paths
2335         ;;
2336     linux)
2337         enable dv1394
2338         ;;
2339     irix*)
2340         target_os=irix
2341         ranlib="echo ignoring ranlib"
2342         ;;
2343     os/2*)
2344         strip="lxlite"
2345         ln_s="cp -f"
2346         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2347         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2348         FFSERVERLDFLAGS=""
2349         LIBSUF="_s.a"
2350         SLIBPREF=""
2351         SLIBSUF=".dll"
2352         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2353         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2354         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2355           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2356           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2357           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2358           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2359           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2360         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2361           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2362         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2363         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2364         enable dos_paths
2365         ;;
2366     gnu/kfreebsd)
2367         ;;
2368     gnu)
2369         ;;
2370     none)
2371         ;;
2372     *)
2373         die "Unknown OS '$target_os'."
2374         ;;
2375 esac
2376
2377 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2378
2379 set_default $PATHS_LIST
2380
2381 # we need to build at least one lib type
2382 if ! enabled_any static shared; then
2383     cat <<EOF
2384 At least one library type must be built.
2385 Specify --enable-static to build the static libraries or --enable-shared to
2386 build the shared libraries as well. To only build the shared libraries specify
2387 --disable-static in addition to --enable-shared.
2388 EOF
2389     exit 1;
2390 fi
2391
2392 disabled static && LIBNAME=""
2393
2394 die_license_disabled() {
2395     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2396 }
2397
2398 die_license_disabled gpl libx264
2399 die_license_disabled gpl libxavs
2400 die_license_disabled gpl libxvid
2401 die_license_disabled gpl postproc
2402 die_license_disabled gpl x11grab
2403
2404 die_license_disabled nonfree libfaac
2405
2406 die_license_disabled version3 libopencore_amrnb
2407 die_license_disabled version3 libopencore_amrwb
2408
2409 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2410
2411 check_deps $ARCH_EXT_LIST
2412
2413 disabled optimizations || check_cflags -fomit-frame-pointer
2414
2415 enable_pic() {
2416     enable pic
2417     add_cppflags -DPIC
2418     add_cflags   -fPIC
2419     add_asflags  -fPIC
2420 }
2421
2422 enabled pic && enable_pic
2423
2424 check_cc <<EOF || die "Symbol mangling check failed."
2425 int ff_extern;
2426 EOF
2427 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2428 extern_prefix=${sym%%ff_extern*}
2429
2430 check_cc <<EOF && enable inline_asm
2431 void foo(void) { __asm__ volatile ("" ::); }
2432 EOF
2433
2434 _restrict=
2435 for restrict_keyword in restrict __restrict__ __restrict; do
2436     check_cc <<EOF && _restrict=$restrict_keyword && break
2437 void foo(char * $restrict_keyword p);
2438 EOF
2439 done
2440
2441 check_cc <<EOF && enable attribute_packed
2442 struct { int x; } __attribute__((packed)) x;
2443 EOF
2444
2445 check_cc <<EOF && enable attribute_may_alias
2446 union { int x; } __attribute__((may_alias)) x;
2447 EOF
2448
2449 check_cc <<EOF || die "endian test failed"
2450 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2451 EOF
2452 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2453
2454 if enabled alpha; then
2455
2456     check_cflags -mieee
2457
2458 elif enabled arm; then
2459
2460     check_cflags -marm
2461     nogas=die
2462
2463     check_ld <<EOF && enable vfp_args
2464 __asm__ (".eabi_attribute 28, 1");
2465 int main(void) { return 0; }
2466 EOF
2467
2468     # We have to check if pld is a nop and disable it.
2469     check_asm pld '"pld [r0]"'
2470
2471     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2472     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2473     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2474     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2475     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2476     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2477
2478     enabled_all armv6t2 shared !pic && enable_pic
2479
2480 elif enabled mips; then
2481
2482     check_asm loongson '"dmult.g $1, $2, $3"'
2483     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2484
2485 elif enabled ppc; then
2486
2487     enable local_aligned_8 local_aligned_16
2488
2489     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2490     check_asm ibm_asm   '"add 0, 0, 0"'
2491     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2492     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2493
2494     # AltiVec flags: The FSF version of GCC differs from the Apple version
2495     if enabled altivec; then
2496         nogas=warn
2497         check_cflags -maltivec -mabi=altivec &&
2498         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2499         check_cflags -faltivec
2500
2501         # check if our compiler supports Motorola AltiVec C API
2502         check_cc <<EOF || disable altivec
2503 $inc_altivec_h
2504 int main(void) {
2505     vector signed int v1, v2, v3;
2506     v1 = vec_add(v2,v3);
2507     return 0;
2508 }
2509 EOF
2510
2511         # check if our compiler supports braces for vector declarations
2512         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2513 $inc_altivec_h
2514 int main (void) { (vector int) {1}; return 0; }
2515 EOF
2516     fi
2517
2518 elif enabled sparc; then
2519
2520     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2521         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2522
2523 elif enabled x86; then
2524
2525     enable local_aligned_8 local_aligned_16
2526
2527     # check whether EBP is available on x86
2528     # As 'i' is stored on the stack, this program will crash
2529     # if the base pointer is used to access it because the
2530     # base pointer is cleared in the inline assembly code.
2531     check_exec_crash <<EOF && enable ebp_available
2532     volatile int i=0;
2533     __asm__ volatile (
2534         "xorl %%ebp, %%ebp"
2535     ::: "%ebp");
2536     return i;
2537 EOF
2538
2539     # check whether EBX is available on x86
2540     check_asm ebx_available '""::"b"(0)' &&
2541         check_asm ebx_available '"":::"%ebx"'
2542
2543     # check whether more than 10 operands are supported
2544     check_cc <<EOF && enable ten_operands
2545 int main(void) {
2546     int x=0;
2547     __asm__ volatile(
2548         ""
2549         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2550     );
2551     return 0;
2552 }
2553 EOF
2554
2555     # check whether binutils is new enough to compile SSSE3/MMX2
2556     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2557     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2558
2559     check_asm bswap '"bswap %%eax" ::: "%eax"'
2560
2561     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2562     enabled     x86_64        && append YASMFLAGS "-m amd64"
2563     enabled     pic           && append YASMFLAGS "-DPIC"
2564     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2565     case "$objformat" in
2566         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2567     esac
2568     if ! disabled yasm; then
2569         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2570             warn "yasm not found, performance will suffer"
2571     fi
2572
2573     case "$cpu" in
2574         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2575             disable fast_clz
2576         ;;
2577     esac
2578
2579 fi
2580
2581 if enabled asm; then
2582     as=${gas:=$as}
2583     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2584         $nogas "GNU assembler not found, install gas-preprocessor"
2585 fi
2586
2587 if check_func dlopen; then
2588     ldl=
2589 elif check_func dlopen -ldl; then
2590     ldl=-ldl
2591 fi
2592
2593 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2594 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2595
2596 check_func  fcntl
2597 check_func  fork
2598 check_func  getaddrinfo $network_extralibs
2599 check_func  gethrtime
2600 check_func  getrusage
2601 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2602 check_func  inet_aton $network_extralibs
2603 check_func  isatty
2604 check_func  ${malloc_prefix}memalign            && enable memalign
2605 check_func  mkstemp
2606 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2607 check_func  setrlimit
2608 check_func  strerror_r
2609 check_func_headers io.h setmode
2610 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2611 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2612 check_func_headers windows.h GetProcessTimes
2613 check_func_headers windows.h VirtualAlloc
2614
2615 check_header conio.h
2616 check_header dlfcn.h
2617 check_header dxva2api.h
2618 check_header malloc.h
2619 check_header poll.h
2620 check_header sys/mman.h
2621 check_header sys/resource.h
2622 check_header sys/select.h
2623 check_header termios.h
2624 check_header vdpau/vdpau.h
2625 check_header vdpau/vdpau_x11.h
2626 check_header X11/extensions/XvMClib.h
2627
2628 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2629
2630 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2631      enabled_any $need_memalign ; then
2632     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2633 fi
2634
2635 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2636 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2637
2638 # check for some common methods of building with pthread support
2639 # do this before the optional library checks as some of them require pthreads
2640 if ! disabled pthreads && ! enabled w32threads; then
2641     enable pthreads
2642     if check_func pthread_create; then
2643         :
2644     elif check_func pthread_create -pthread; then
2645         add_cflags -pthread
2646         add_extralibs -pthread
2647     elif check_func pthread_create -pthreads; then
2648         add_cflags -pthreads
2649         add_extralibs -pthreads
2650     elif check_func pthread_create -lpthreadGC2; then
2651         add_extralibs -lpthreadGC2
2652     elif ! check_lib pthread.h pthread_create -lpthread; then
2653         disable pthreads
2654     fi
2655 fi
2656
2657 for thread in $THREADS_LIST; do
2658     if enabled $thread; then
2659         test -n "$thread_type" &&
2660             die "ERROR: Only one thread type must be selected." ||
2661             thread_type="$thread"
2662     fi
2663 done
2664
2665 check_lib math.h sin -lm
2666 disabled vaapi || check_lib va/va.h vaInitialize -lva
2667
2668 check_mathfunc exp2
2669 check_mathfunc exp2f
2670 check_mathfunc llrint
2671 check_mathfunc llrintf
2672 check_mathfunc log2
2673 check_mathfunc log2f
2674 check_mathfunc lrint
2675 check_mathfunc lrintf
2676 check_mathfunc round
2677 check_mathfunc roundf
2678 check_mathfunc truncf
2679
2680 # these are off by default, so fail if requested and not available
2681 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2682 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2683                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2684                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2685 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2686 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2687 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2688 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2689 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2690 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2691 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2692 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2693                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2694 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2695                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2696 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2697 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2698 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2699 enabled libvpx     && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx &&
2700                         check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2701                       die "ERROR: libvpx version must be >=0.9.1"; }
2702 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2703                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2704                         die "ERROR: libx264 version must be >= 0.98."; }
2705 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2706 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2707 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2708
2709 # libdc1394 check
2710 if enabled libdc1394; then
2711     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2712         enable libdc1394_2; } ||
2713     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2714         enable libdc1394_1; } ||
2715     die "ERROR: No version of libdc1394 found "
2716 fi
2717
2718 SDL_CONFIG="${cross_prefix}sdl-config"
2719 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2720     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2721     sdl_libs=$("${SDL_CONFIG}" --libs)
2722     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2723     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2724     enable sdl &&
2725     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2726 fi
2727
2728 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2729
2730 if enabled network; then
2731     check_type "sys/types.h sys/socket.h" socklen_t
2732     check_type netdb.h "struct addrinfo"
2733     check_type netinet/in.h "struct ipv6_mreq"
2734     check_type netinet/in.h "struct sockaddr_in6"
2735     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2736     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2737     # Prefer arpa/inet.h over winsock2
2738     if check_header arpa/inet.h ; then
2739         check_func closesocket
2740     elif check_header winsock2.h ; then
2741         check_func_headers winsock2.h closesocket -lws2 && \
2742             network_extralibs="-lws2" || \
2743         { check_func_headers winsock2.h closesocket -lws2_32 && \
2744             network_extralibs="-lws2_32"; }
2745         check_type ws2tcpip.h socklen_t
2746         check_type ws2tcpip.h "struct addrinfo"
2747         check_type ws2tcpip.h "struct ipv6_mreq"
2748         check_type ws2tcpip.h "struct sockaddr_in6"
2749         check_type ws2tcpip.h "struct sockaddr_storage"
2750         check_struct winsock2.h "struct sockaddr" sa_len
2751     else
2752         disable network
2753     fi
2754 fi
2755
2756 check_header linux/videodev.h
2757 check_header linux/videodev2.h
2758 check_header sys/videoio.h
2759
2760 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2761 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2762 # w32api 3.12 had it defined wrong
2763 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2764
2765 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2766 { check_header dev/bktr/ioctl_meteor.h &&
2767   check_header dev/bktr/ioctl_bt848.h; } ||
2768 { check_header machine/ioctl_meteor.h &&
2769   check_header machine/ioctl_bt848.h; } ||
2770 { check_header dev/video/meteor/ioctl_meteor.h &&
2771   check_header dev/video/bktr/ioctl_bt848.h; } ||
2772 check_header dev/ic/bt8xx.h
2773
2774 check_header sys/soundcard.h
2775 check_header soundcard.h
2776
2777 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2778
2779 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2780
2781 enabled x11grab                         &&
2782 check_header X11/Xlib.h                 &&
2783 check_header X11/extensions/XShm.h      &&
2784 check_header X11/extensions/Xfixes.h    &&
2785 check_func XOpenDisplay -lX11           &&
2786 check_func XShmCreateImage -lX11 -lXext &&
2787 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2788
2789 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2790 check_cpp_condition \
2791     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2792     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2793       disable vdpau; }
2794 fi
2795
2796 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2797
2798 # add some useful compiler flags if supported
2799 check_cflags -Wdeclaration-after-statement
2800 check_cflags -Wall
2801 check_cflags -Wno-parentheses
2802 check_cflags -Wno-switch
2803 check_cflags -Wdisabled-optimization
2804 check_cflags -Wpointer-arith
2805 check_cflags -Wredundant-decls
2806 check_cflags -Wno-pointer-sign
2807 check_cflags -Wcast-qual
2808 check_cflags -Wwrite-strings
2809 check_cflags -Wtype-limits
2810 check_cflags -Wundef
2811 check_cflags -Wmissing-prototypes
2812 enabled extra_warnings && check_cflags -Winline
2813
2814 # add some linker flags
2815 check_ldflags -Wl,--warn-common
2816 check_ldflags -Wl,--as-needed
2817 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavcore -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2818 check_ldflags -Wl,-Bsymbolic
2819
2820 echo "X{};" > $TMPV
2821 if test_ldflags -Wl,--version-script,$TMPV; then
2822     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2823     check_cc <<EOF && enable symver_asm_label
2824 void ff_foo(void) __asm__ ("av_foo@VERSION");
2825 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2826 EOF
2827     check_cc <<EOF && enable symver_gnu_asm
2828 __asm__(".symver ff_foo,av_foo@VERSION");
2829 void ff_foo(void) {}
2830 EOF
2831 fi
2832
2833 if enabled small; then
2834     add_cflags $size_cflags
2835     optimizations="small"
2836 elif enabled optimizations; then
2837     add_cflags $speed_cflags
2838 else
2839     add_cflags $noopt_cflags
2840 fi
2841 check_cflags -fno-math-errno
2842 check_cflags -fno-signed-zeros
2843
2844 if enabled icc; then
2845     # Just warnings, no remarks
2846     check_cflags -w1
2847     # -wd: Disable following warnings
2848     # 144, 167, 556: -Wno-pointer-sign
2849     # 10006: ignoring unknown option -fno-signed-zeros
2850     # 10156: ignoring option '-W'; no argument required
2851     check_cflags -wd144,167,556,10006,10156
2852     # 11030: Warning unknown option --as-needed
2853     # 10156: ignoring option '-export'; no argument required
2854     check_ldflags -wd10156,11030
2855     # Allow to compile with optimizations
2856     check_ldflags -march=$cpu
2857     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2858     enable ebp_available
2859 elif enabled ccc; then
2860     # disable some annoying warnings
2861     add_cflags -msg_disable cvtu32to64
2862     add_cflags -msg_disable embedcomment
2863     add_cflags -msg_disable needconstext
2864     add_cflags -msg_disable nomainieee
2865     add_cflags -msg_disable ptrmismatch1
2866     add_cflags -msg_disable unreachcode
2867 elif enabled gcc; then
2868     check_cflags -fno-tree-vectorize
2869     check_cflags -Werror=implicit-function-declaration
2870     check_cflags -Werror=missing-prototypes
2871 elif enabled clang; then
2872     check_cflags -Qunused-arguments
2873 elif enabled armcc; then
2874     # 2523: use of inline assembler is deprecated
2875     add_cflags -Wrvct,--diag_suppress=2523
2876     add_cflags -Wrvct,--diag_suppress=1207
2877 elif enabled tms470; then
2878     add_cflags -pds=824 -pds=837
2879 fi
2880
2881 enabled_any $THREADS_LIST      && enable threads
2882
2883 check_deps $CONFIG_LIST       \
2884            $CONFIG_EXTRA      \
2885            $HAVE_LIST         \
2886            $DECODER_LIST      \
2887            $ENCODER_LIST      \
2888            $HWACCEL_LIST      \
2889            $PARSER_LIST       \
2890            $BSF_LIST          \
2891            $DEMUXER_LIST      \
2892            $MUXER_LIST        \
2893            $FILTER_LIST       \
2894            $INDEV_LIST        \
2895            $OUTDEV_LIST       \
2896            $PROTOCOL_LIST     \
2897            $ACODEC_TESTS      \
2898            $VCODEC_TESTS      \
2899            $LAVF_TESTS        \
2900            $LAVFI_TESTS       \
2901            $SEEK_TESTS        \
2902
2903 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2904
2905 echo "install prefix            $prefix"
2906 echo "source path               $source_path"
2907 echo "C compiler                $cc"
2908 echo "ARCH                      $arch ($cpu)"
2909 if test "$build_suffix" != ""; then
2910     echo "build suffix              $build_suffix"
2911 fi
2912 if test "$extra_version" != ""; then
2913     echo "version string suffix     $extra_version"
2914 fi
2915 echo "big-endian                ${bigendian-no}"
2916 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2917 if enabled x86; then
2918     echo "yasm                      ${yasm-no}"
2919     echo "MMX enabled               ${mmx-no}"
2920     echo "MMX2 enabled              ${mmx2-no}"
2921     echo "3DNow! enabled            ${amd3dnow-no}"
2922     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2923     echo "SSE enabled               ${sse-no}"
2924     echo "SSSE3 enabled             ${ssse3-no}"
2925     echo "CMOV enabled              ${cmov-no}"
2926     echo "CMOV is fast              ${fast_cmov-no}"
2927     echo "EBX available             ${ebx_available-no}"
2928     echo "EBP available             ${ebp_available-no}"
2929     echo "10 operands supported     ${ten_operands-no}"
2930 fi
2931 if enabled arm; then
2932     echo "ARMv5TE enabled           ${armv5te-no}"
2933     echo "ARMv6 enabled             ${armv6-no}"
2934     echo "ARMv6T2 enabled           ${armv6t2-no}"
2935     echo "ARM VFP enabled           ${armvfp-no}"
2936     echo "IWMMXT enabled            ${iwmmxt-no}"
2937     echo "NEON enabled              ${neon-no}"
2938 fi
2939 if enabled mips; then
2940     echo "MMI enabled               ${mmi-no}"
2941 fi
2942 if enabled ppc; then
2943     echo "AltiVec enabled           ${altivec-no}"
2944     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2945     echo "dcbzl available           ${dcbzl-no}"
2946 fi
2947 if enabled sparc; then
2948     echo "VIS enabled               ${vis-no}"
2949 fi
2950 echo "debug symbols             ${debug-no}"
2951 echo "strip symbols             ${stripping-no}"
2952 echo "optimizations             ${optimizations-no}"
2953 echo "static                    ${static-no}"
2954 echo "shared                    ${shared-no}"
2955 echo "postprocessing support    ${postproc-no}"
2956 echo "new filter support        ${avfilter-no}"
2957 echo "network support           ${network-no}"
2958 echo "threading support         ${thread_type-no}"
2959 echo "SDL support               ${sdl-no}"
2960 echo "Sun medialib support      ${mlib-no}"
2961 echo "AVISynth enabled          ${avisynth-no}"
2962 echo "libdc1394 support         ${libdc1394-no}"
2963 echo "libdirac enabled          ${libdirac-no}"
2964 echo "libfaac enabled           ${libfaac-no}"
2965 echo "libgsm enabled            ${libgsm-no}"
2966 echo "libmp3lame enabled        ${libmp3lame-no}"
2967 echo "libnut enabled            ${libnut-no}"
2968 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2969 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2970 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2971 echo "librtmp enabled           ${librtmp-no}"
2972 echo "libschroedinger enabled   ${libschroedinger-no}"
2973 echo "libspeex enabled          ${libspeex-no}"
2974 echo "libtheora enabled         ${libtheora-no}"
2975 echo "libvorbis enabled         ${libvorbis-no}"
2976 echo "libvpx enabled            ${libvpx-no}"
2977 echo "libx264 enabled           ${libx264-no}"
2978 echo "libxavs enabled           ${libxavs-no}"
2979 echo "libxvid enabled           ${libxvid-no}"
2980 echo "zlib enabled              ${zlib-no}"
2981 echo "bzlib enabled             ${bzlib-no}"
2982 echo
2983
2984 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2985     echo "Enabled ${type}s:"
2986     eval list=\$$(toupper $type)_LIST
2987     print_enabled '_*' $list | sort | pr -3 -t
2988     echo
2989 done
2990
2991 license="LGPL version 2.1 or later"
2992 if enabled nonfree; then
2993     license="nonfree and unredistributable"
2994 elif enabled gplv3; then
2995     license="GPL version 3 or later"
2996 elif enabled lgplv3; then
2997     license="LGPL version 3 or later"
2998 elif enabled gpl; then
2999     license="GPL version 2 or later"
3000 fi
3001
3002 echo "License: $license"
3003
3004 echo "Creating config.mak and config.h..."
3005
3006 # build tree in object directory if source path is different from current one
3007 if enabled source_path_used; then
3008     DIRS="
3009         doc
3010         libavcodec
3011         libavcodec/$arch
3012         libavcore
3013         libavdevice
3014         libavfilter
3015         libavformat
3016         libavutil
3017         libavutil/$arch
3018         libpostproc
3019         libswscale
3020         libswscale/$arch
3021         tests
3022         tools
3023     "
3024     FILES="
3025         Makefile
3026         common.mak
3027         subdir.mak
3028         doc/texi2pod.pl
3029         libavcodec/Makefile
3030         libavcodec/${arch}/Makefile
3031         libavcore/Makefile
3032         libavdevice/Makefile
3033         libavfilter/Makefile
3034         libavformat/Makefile
3035         libavutil/Makefile
3036         libpostproc/Makefile
3037         libswscale/Makefile
3038     "
3039     map 'mkdir -p $v' $DIRS;
3040     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3041 fi
3042
3043 enabled stripping || strip="echo skipping strip"
3044
3045 cat > config.mak <<EOF
3046 # Automatically generated by configure - do not modify!
3047 ifndef FFMPEG_CONFIG_MAK
3048 FFMPEG_CONFIG_MAK=1
3049 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3050 prefix=$prefix
3051 LIBDIR=\$(DESTDIR)$libdir
3052 SHLIBDIR=\$(DESTDIR)$shlibdir
3053 INCDIR=\$(DESTDIR)$incdir
3054 BINDIR=\$(DESTDIR)$bindir
3055 DATADIR=\$(DESTDIR)$datadir
3056 MANDIR=\$(DESTDIR)$mandir
3057 SRC_PATH="$source_path"
3058 SRC_PATH_BARE=$source_path
3059 BUILD_ROOT="$PWD"
3060 CC_IDENT=$cc_ident
3061 ARCH=$arch
3062 CC=$cc
3063 AS=$as
3064 LD=$ld
3065 DEPCC=$dep_cc
3066 YASM=$yasmexe
3067 YASMDEP=$yasmexe
3068 AR=$ar
3069 RANLIB=$ranlib
3070 CP=cp -p
3071 LN_S=$ln_s
3072 STRIP=$strip
3073 CPPFLAGS=$CPPFLAGS
3074 CFLAGS=$CFLAGS
3075 ASFLAGS=$ASFLAGS
3076 CC_O=$CC_O
3077 LDFLAGS=$LDFLAGS
3078 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3079 SHFLAGS=$SHFLAGS
3080 YASMFLAGS=$YASMFLAGS
3081 BUILDSUF=$build_suffix
3082 FULLNAME=$FULLNAME
3083 LIBPREF=$LIBPREF
3084 LIBSUF=$LIBSUF
3085 LIBNAME=$LIBNAME
3086 SLIBPREF=$SLIBPREF
3087 SLIBSUF=$SLIBSUF
3088 EXESUF=$EXESUF
3089 EXTRA_VERSION=$extra_version
3090 DEPFLAGS=$DEPFLAGS
3091 CCDEP=$CCDEP
3092 ASDEP=$ASDEP
3093 CC_DEPFLAGS=$CC_DEPFLAGS
3094 AS_DEPFLAGS=$AS_DEPFLAGS
3095 HOSTCC=$host_cc
3096 HOSTCFLAGS=$host_cflags
3097 HOSTEXESUF=$HOSTEXESUF
3098 HOSTLDFLAGS=$host_ldflags
3099 HOSTLIBS=$host_libs
3100 TARGET_EXEC=$target_exec
3101 TARGET_PATH=$target_path
3102 SDL_LIBS=$sdl_libs
3103 SDL_CFLAGS=$sdl_cflags
3104 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3105 EXTRALIBS=$extralibs
3106 INSTALL=install
3107 LIBTARGET=${LIBTARGET}
3108 SLIBNAME=${SLIBNAME}
3109 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3110 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3111 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3112 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3113 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3114 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3115 SAMPLES=$samples
3116 EOF
3117
3118 get_version(){
3119     name=$1
3120     file=$source_path/$2
3121     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3122     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3123     lcname=$(tolower $name)
3124     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3125     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3126 }
3127
3128 get_version LIBSWSCALE  libswscale/swscale.h
3129 get_version LIBPOSTPROC libpostproc/postprocess.h
3130 get_version LIBAVCODEC  libavcodec/avcodec.h
3131 get_version LIBAVCORE   libavcore/avcore.h
3132 get_version LIBAVDEVICE libavdevice/avdevice.h
3133 get_version LIBAVFORMAT libavformat/avformat.h
3134 get_version LIBAVUTIL   libavutil/avutil.h
3135 get_version LIBAVFILTER libavfilter/avfilter.h
3136
3137 cat > $TMPH <<EOF
3138 /* Automatically generated by configure - do not modify! */
3139 #ifndef FFMPEG_CONFIG_H
3140 #define FFMPEG_CONFIG_H
3141 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3142 #define FFMPEG_LICENSE "$(c_escape $license)"
3143 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3144 #define CC_TYPE "$cc_type"
3145 #define CC_VERSION $cc_version
3146 #define restrict $_restrict
3147 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3148 #define EXTERN_PREFIX "${extern_prefix}"
3149 #define EXTERN_ASM ${extern_prefix}
3150 EOF
3151
3152 test -n "$malloc_prefix" &&
3153     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3154
3155 if enabled small || disabled optimizations; then
3156     echo "#undef  av_always_inline"  >> $TMPH
3157     echo "#define av_always_inline"  >> $TMPH
3158 fi
3159
3160 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3161 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3162 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3163                                       $CONFIG_EXTRA      \
3164                                       $DECODER_LIST      \
3165                                       $ENCODER_LIST      \
3166                                       $HWACCEL_LIST      \
3167                                       $PARSER_LIST       \
3168                                       $BSF_LIST          \
3169                                       $DEMUXER_LIST      \
3170                                       $MUXER_LIST        \
3171                                       $FILTER_LIST       \
3172                                       $PROTOCOL_LIST     \
3173                                       $INDEV_LIST        \
3174                                       $OUTDEV_LIST       \
3175
3176 cat >>config.mak <<EOF
3177 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3178 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3179 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3180 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3181 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3182 EOF
3183
3184 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3185 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3186
3187 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3188 cp_if_changed $TMPH config.h
3189 touch .config
3190
3191 cat > $TMPH <<EOF
3192 /* Generated by ffconf */
3193 #ifndef AVUTIL_AVCONFIG_H
3194 #define AVUTIL_AVCONFIG_H
3195 EOF
3196
3197 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3198
3199 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3200
3201 cp_if_changed $TMPH libavutil/avconfig.h
3202
3203 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
3204
3205 test -n "$WARNINGS" && printf "\n$WARNINGS"
3206
3207 # build pkg-config files
3208
3209 pkgconfig_generate(){
3210 name=$1
3211 shortname=${name#lib}${build_suffix}
3212 comment=$2
3213 version=$3
3214 libs=$4
3215 requires=$5
3216 enabled $shortname || return 0
3217 cat <<EOF > $name/$name.pc
3218 prefix=$prefix
3219 exec_prefix=\${prefix}
3220 libdir=$libdir
3221 includedir=$incdir
3222
3223 Name: $name
3224 Description: $comment
3225 Version: $version
3226 Requires: $(enabled shared || echo $requires)
3227 Requires.private: $(enabled shared && echo $requires)
3228 Conflicts:
3229 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3230 Libs.private: $(enabled shared && echo $libs)
3231 Cflags: -I\${includedir}
3232 EOF
3233 cat <<EOF > $name/$name-uninstalled.pc
3234 prefix=
3235 exec_prefix=
3236 libdir=\${pcfiledir}
3237 includedir=${source_path}
3238
3239 Name: $name
3240 Description: $comment
3241 Version: $version
3242 Requires: $requires
3243 Conflicts:
3244 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3245 Cflags: -I\${includedir}
3246 EOF
3247 }
3248
3249 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3250 pkgconfig_generate libavcore "FFmpeg multimedia shared core utilities library" "$LIBAVCORE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3251 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3252 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3253 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3254 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavcore = $LIBAVCORE_VERSION"
3255 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3256 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"